<?php

class IServer extends IObject {
	private static $instance;
	
	private function __construct() {
		
	}
	
	/**
	 * Enter description here...
	 *
	 * @return IServer
	 */
	public static function singleton() {
		if (self::$instance == null) {
			self::$instance = new self;
		}
		return self::$instance;
	}
}

?>